drm/amdgpu: Default disable GDS for compute VMIDs

[sfrench/cifs-2.6.git] / drivers / gpu / drm / amd / amdgpu / gfx_v7_0.c

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
index 0db9f488da7eb4a0db8672cb88ab4d16a0c5a20f..21187275dfd37e496db7de2de3f21f2518a606f9 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
@@ -1879,6 +1879,15 @@ static void gfx_v7_0_init_compute_vmid(struct amdgpu_device *adev)
        }
        cik_srbm_select(adev, 0, 0, 0, 0);
        mutex_unlock(&adev->srbm_mutex);
+
+       /* Initialize all compute VMIDs to have no GDS, GWS, or OA
+          acccess. These should be enabled by FW for target VMIDs. */
+       for (i = FIRST_COMPUTE_VMID; i < LAST_COMPUTE_VMID; i++) {
+               WREG32(amdgpu_gds_reg_offset[i].mem_base, 0);
+               WREG32(amdgpu_gds_reg_offset[i].mem_size, 0);
+               WREG32(amdgpu_gds_reg_offset[i].gws, 0);
+               WREG32(amdgpu_gds_reg_offset[i].oa, 0);
+       }
 }
 
 static void gfx_v7_0_config_init(struct amdgpu_device *adev)